Audio analysis skill for Claude
Claude Code loaded a Gemini-written Loooom skill, installed its own audio libraries, and analyzed a 37-second piano recording of Espresso.
It produced a report with BPM (~91), 4/4 meter, B major key, 50 onsets, a four-section timeline, and a stem list.
Overview
How it was set up
Skill drafted with Gemini and published on loooom.xyz, then loaded in Claude Code. Claude installed ffmpeg and librosa mid-session and ran a Python analysis on a local MP3.
Worth knowing
Estimated BPM of ~91 differed from the song's canonical ~104. The author says accuracy was not the goal.
A prompt to start from
Use the song-structure skill to analyze [audio file path]. Report BPM, meter, key, a section timeline with timestamps, frequency brackets, and likely stems. Install any missing audio tools first.Written by Agentic Feats from the source. Not the author's exact prompt.
Sources 1
History
- Added to Agentic Feats
- 2026-10-13
- Pick
- No
- Markdown copy
- /c/audio-analysis-skill-for-claude-claude-code.md
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